Lock mechanism



H. J. LEE

LOCK MECHANISM Jan. 1,

Filed June 6, 1921 Patented Jan. 1, 1924.

HENRY JAMES LEE, on BIRMINGHAM, ENGLAND.

LOCK MECHANISM.

Application filed June 6,

To all whom it may concern:

Be it known that I, HENRY JAMES LEE, 9. subject of the King of GreatBritain, residing at 174 Corporation Street Birmingham, England,engineer, have invented -a new and useful Improvement in Lock Mechanism,and do hereby declare the following to be a full, clear, and exactdescription of the same.

This invention has reference to an improved lock mechanism and isespecially applicable for use in connection with the looking ofautomobiles against unauthorized use or theft, but its application isnot limited thereto. 7 I

The object of the present invention is the improved construction of thelock mechanism so as to reduce the number of parts and consequentlyreduce the cost of production, while at the same time forming a securelocking means of the character referred to.

Theinvention consists of. a lock comprising an outer casing containing afixed section and one or more rotary members adapted to be normallyinterlocked with the fixed section, the rotary member or members beingformed with an eccentric section which upon rotation'projects through orbeyond a slot or slots in the casing and moves into locking or locatingengagement with corresponding recesses formed in the body which containsthe lock.

The present invention will now be described with particular reference tothe accompanying sheet of drawings in which like reference numeralsindicate like parts in the dilferent views I Fig. 1 is a longitudinalpart sectional elevation through one construction of the lock.

Fig. 2 is a cross sectional elevation taken on line 22 of Fig. 1.

Fig. 3 is a part sectional longitudinal elevation showing an applicationof the look as seen in Figs. 1 and 2.

Fig. 4 is a part sectional elevation of another application of the lock,the lock casing being slightly modified, and

Fig. 5 is an elevation taken at right angles to Fig. 4 as viewed fromthe right hand side.

Referring first to Figs. 1 and 2, the lock consists of a cylindricalcasing 6 which is formed with a segmental slot 7 therein. Within thecasing is located a fixed cylindrical section 8 and an abutting section9 which is formed with an integral eccentric section 1921. Serial no.475,435).

10, the section 9 being also formed with an I integral cylindricalextension 11 which passes through and is located within the fixedsection 8. The section 9-is capable of rotation by the use of a key. Itis normally interlocked with the fixed section 8 by means of the alignedplungers12 whichare controlled by the coil springs 13 located within theslots 1a in the fixed section 8, the fixed section 8 is locked to thecasing 6 by means of apin. 15 as seen in Fig. 1. When the key isinserted in the lock casing through the cylindrical aperture 6 thereinthe section 9 formed with the eccentric 10 is freed from the fixedsection 8 and can be rotated so that a portion of the eccentric 10projects through and beyond the segmental slots 7 in the lock casing 6.In Figs. 1 and 2 of the drawings the eccentric 10 is shown in theprojecting or looking or locating position, and it will be quite clearthat a partial rotation of this section will withdraw it within theperiphery of the lock casing 6. i

Referring now more particularly to. Figs. 1, 2 and 3, F ig. 3 shows oneapplication of the look as seen in "Figs. 1 and 2, normally the lock maybe said to be mounted within the fixed member 16 which is formed with alocating slot.16 therein to receive the eccentric section 10 when in thelocking'or locating position. In alignment with the aperturedv member 16is an apertured mem-' ber 17 which is normally adapted for a reciprocalmotion. This member is formed with a locating slot 17 therein whichcorresponds to the slot 16 in the member 16 and when it is desiredto fixthe position of the member 17 relative to the member 16 the eccentricsection 10 is withdrawn within the lock casing 6 and the lock bodilymoved forward to the position indicated by dotted lines in Fig. 3, whenthe eccentricsection 10 is turned so that the projecting part thereofengages within the locating slot 17*, by this means the member 17 isheld against motion and fixed in a determined position relative to themember 16.

Referring now to the modification and application seen in Figs. 4 and 5,the lock is mounted within the fixed bracket 18 which is provided withtwo locating slots 18 and 18". Mounted on a spindle 19 which is mountedin the bracket 18 is a lever 20 which is adapted to be reci rocated asin-' dicated in Fig. 5 of the rawings. The

lock casing 6 in this construction is formed with a substantiallyrectangular extension in the lever 20. When it is desired to lock thelever 20 in position relative to the bracket 18 the lock is bodilyadvanced as.

seen in Fig. 4 of the drawings until the extension 21 is located withinth'e'slot 22" of the lever. When in this position the eccentricsection-1O of'the'lock isturned to engage within the'locating recess 18formed i11 the'bracket18a" WVhen it is'desired to freethe lever 20 theeccentric section 10 is withdrawn within the lock casingiand'the lockbodily moved toward the left until the eccentric section lO iscoincident with the locating slot 18 when the eccentric section lO'isagain projected beyond the lock casing, this time into the locatingrecess 18*, the extension 21 is now clear of the slot 22 in the lever20.

Thekey can retract the'casing 6 or the bolt'21 by frictional sidepressure, or by formingthe key stem with a lateral projection adaptedtoengage a bayonet slot 6 in the'retractable member.

The casing 6 is slidably mounted within the cylindricalsocket of themember 16, or

inthe cylindricalisocket of the bracket 18,

and'xthe casingis held against rotation by means of a feather 23 formedon the lock casing 6 and a key-way 24: formed in the member. 16orbracket 18.

From the foregoing description it will be seen that this improvedlockmechanism may bcrpe'rmanently but adj ustably secured in the bodybywhich it is: carried in which casev the eccentric section could formthe interlocking means between thefree and fixed members, oralternatively the locking mechanism could be separable from the body insuch a manner thattheeccentric section forms the locating means the lockcasing itself or a member secured thereto form the interlocking means.

Claims 1; A lock comprising in combination a mental slot in the lockcasing and moves into looking or locating engagement with correspondingrecesses formed in the body which contains the lock. Y I 2. A lockadapted for longitudinal movement so that the body of the lock canengage two'or more members which are to be locked together said membershaving slots for engagement by the lockingimember of the lock,comprising in combination a casing" havin a segmental slot, a fixedsection, a

rotary section, spring controlled plungers coaxial with the longitudinalaxis of the lock and: adapted to interlock the rotary section to thefixed section, and an eccentric section carried by the rotary sectionwhich upon rotation projects through the segmental slot in thelock'casing and moves into looking or locating engagement wlthcorresponding; recesses formed in the body which containsithe lock.

3. A lock comprising in combination a body which contains the look, acasing hav ing a segmental slot and an end projection adapted toengage amember WlllCll has its path of motion at right angles tot-he'longitudinal axis of said' casin'g, a fixed-section, a rotary section,spring controlled plungers" co-axial with the longitudinal axis of" the100k and adapted to interlock the rotary" section to the fixed section,and an eccentric section carried by therotary section which upon'rotation projects through the segmental slot in the lock casing andmoves into locking or locating engagement with corresponding recessesformedin the body which contains the look.

In testimony whereof, I have signed my

